Una fuerza horizontal de 40 N, que actúa sobre un bloque en una superficie a nivel que no ejerce fricción, produce una aceleración de 2.5 m/s^2 . Un segundo bloque, con una masa de 4.0 kg, se deja caer sobre el primero. ¿Cuál es la magnitud de la aceleración de la combinación de bloques si la misma fuerza continúa actuando?

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec

The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db